Learn JavaScript from Scratch JavaScript for Everyone - Conditional Statements

The video tutorial covers the basics of JavaScript programming, focusing on variables, constants, and conditional statements. It explains how to use if-else statements and comparison operators to control program flow. Practical examples demonstrate how to apply these concepts, including using else if and nested conditionals. The tutorial emphasizes the importance of understanding data types and structures in programming.

What is the purpose of using 'const' in JavaScript?

• To declare a variable that is always a string

• To declare a variable that cannot be reassigned

• To declare a variable that is always a number

• To declare a variable that can be reassigned

What does the '==' operator do in JavaScript?

• Checks if two values are not equal

• Checks if two values are equal

• Compares two numbers only

• Assigns a value to a variable

What happens if the condition in an 'if' statement is false?

• The program throws an error

• The program stops executing

• The code inside the 'if' block is skipped

• The code inside the 'if' block is executed

How does an 'else' statement function in JavaScript?

• It executes code when the 'if' condition is true

• It executes code only if there is no 'if' statement

• It executes code regardless of the 'if' condition

• It executes code when the 'if' condition is false

What is the role of 'else if' in JavaScript conditionals?

• To stop the execution of the program

• To provide an alternative condition to check if the previous 'if' was false

• To execute code when all 'if' conditions are true

• To execute code when the 'else' condition is true

Why is the order of 'else if' statements important?

• Because JavaScript executes them in reverse order

• Because the first true condition will be executed

• Because they are executed simultaneously

• Because they are ignored if not in order

What is a fundamental part of JavaScript that allows decision-making in code?

• Functions

• Variables

• Conditionals

• Loops

Which of the following is NOT a comparison operator in JavaScript?

• ==

• >=

• <=

• ===

What should you do if you want to execute code when none of the 'if' or 'else if' conditions are true?

• Use a 'while' loop

• Use an 'else' statement

• Use a 'switch' statement

• Use a 'for' loop

What is the best way to practice JavaScript conditionals?

• By memorizing syntax

• By reading about them

• By watching videos

• By writing and testing your own code